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HIGH Updates Debian Security

DSA-6236-1 firefox-esr - security update

Multiple security vulnerabilities (CVE-2026-7320, CVE-2026-7321, CVE-2026-7322, CVE-2026-7323) in Mozilla Firefox ESR could lead to arbitrary code execution, information disclosure, or sandbox escape. The CVSS scores range from High (7.3, 7.5) to Critical (9.6). For Debian Bookworm, upgrade firefox-esr to version 140.10.1esr-1~deb12u1; for Debian Trixie, upgrade to version 140.10.1esr-1~deb13u1.
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[Date Prev][Date Next] [Thread Prev][Thread Next] [Date Index] [Thread Index] [SECURITY] [DSA 6236-1] firefox-esr security update To: debian-security-announce@lists.debian.org Subject: [SECURITY] [DSA 6236-1] firefox-esr security update From: Moritz Muehlenhoff <jmm@debian.org> Date: Wed, 29 Apr 2026 17:49:31 +0000 Message-id: <[🔎] afJEqx-tEOoP-1RH@seger.debian.org> Reply-to: debian-security-announce-request@lists.debian.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6236-1 security@debian.org https://www.debian.org/security/ Moritz Muehlenhoff April 29, 2026 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : firefox-esr CVE ID : CVE-2026-7320 CVE-2026-7321 CVE-2026-7322 CVE-2026-7323 Multiple security issues have been found in the Mozilla Firefox web browser, which could potentially result in the execution of arbitrary code, information disclosure or sandbox escape. For the oldstable distribution (bookworm), these problems have been fixed in version 140.10.1esr-1~deb12u1. For the stable distribution (trixie), these problems have been fixed in version 140.10.1esr-1~deb13u1. We recommend that you upgrade your firefox-esr packages. For the detailed security status of firefox-esr please refer to its security tracker page at: https://security-tracker.debian.org/tracker/firefox-esr Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: debian-security-announce@lists.debian.org -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEtuYvPRKsOElcDakFEMKTtsN8TjYFAmnyQbEACgkQEMKTtsN8 TjZNbQ/7BuszV9b5WomW41lnyahZB0oNMTu9/ufI31Wss3A1mcz/FdqDTaccvW3m MSfELMkVBsPUKoYJ1Q3AfkfdIzhKUj5gAwtBYo2WY9/O3YStjG+n66Mbe0Wq+y3y Kn6yqJDVl2vDb6r/DDWr97KTLdNw7hkLbMeXETROctFZvFSXlcjQTB0ezkPtIoiz YcEtQB/KqW6CPz1jR5wRlGuTeSzdQjgzeqI6fB398jEQMHcUDHzVtIQ51c0KaevS kF7LZGJrAKSt9XRI878K6QO/27+Qi5EKGD78Ra7qPqC2lRv4Kei72Tjg46ChmvlN 5hL4ZjygzMGCCDeLy9QiKUDDavYwnbNuxQw6DoDdCbMMWZgOSVzRY93I8PhA0LVe PZRifRDEn/+u5imrZXlppYygmnIHq4OCmYAF0JFUa8cdyCKE7uZt/IefX2zdcxmA B9aEhdQX2Q8W6xS9ftgBBWEddLH1Ln7kUeaXSCk5DyaOzcy3dvjiIaJO9o6dyPt2 hN2WbbdJqNqi4djtYEBOemvny8kIwp70+05Qtsvh7TPz6AIC2SK66b0VPOIhCD/N o3PLdFndd8tEMgy0JZ2sxGRAiT6POBSRTJZFrxA2Kmrf8LWpjC5USW9/OioOs4RW qdrVNI2vA4qK3jVSPXPO3CPpK2mvLPrcvSF32jDjzuEd1F4+cWs= =oJWA -----END PGP SIGNATURE----- Reply to: debian-security-announce@lists.debian.org Moritz Muehlenhoff (on-list) Moritz Muehlenhoff (off-list) Prev by Date: [SECURITY] [DSA 6235-1] dnsdist security update Next by Date: [SECURITY] [DSA 6237-1] openjdk-17 Previous by thread: [SECURITY] [DSA 6235-1] dnsdist security update Next by thread: [SECURITY] [DSA 6237-1] openjdk-17 Index(es): Date Thread

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